beautiful songs. Birds sing a different melody at different times of the day and night. Their calls seem to change depending ...

The planet’s birds make a lot of different sounds communicating a wide variety of messages. The petite Black-capped chickadee emits a high noise that tells predators to scram. Hungry Pileated ...

Birds make sounds to communicate, whether to find a potential mate, ward off predators, or just sing for pleasure. But the conditions that contribute to the immense diversity of the sounds they ...